Though the trunk on this two header monster expresses sheer power, the branches and foliage are surprisingly delicate and graceful. The tree is a Coast Redwood (Sequoia sempervirens), a species* that happens to be the tallest tree on this planet (there are a few hidden in the wilds of northwest California that tower to as high as 400 feet - 122 meters)

You don’t see that many top notch Redwood bonsai and when you do, there's a good chance that they come from members of the Redwood Empire Bonsai Society, those fortunate few bonsai artists that live along or near the Northern California coast, home of the world's tallest and perhaps most magnificent trees (rivaled only by the Giant Sequoias of California's Sierras - imho)
Continued below…

We found all the photos shown here on Pinterest. All but one are from Redwood Empire Bonsai Society. We originally featured them in November, 2017

Here's the one that's not from REBSociety. The caption on Pinterest says... "Photograph by Cedric Wiens (via Portland Japanese Garden)" 

 *Coast redwood (Sequoia sempervirens) is the tallest tree in the world (up to about 400 feet – 122 meters) and one of the world's oldest trees as well. It’s cousin, the Giant sequoia (Sequoiadendron giganteum) which grows in California’s Sierra Nevada mountains, happens to be the largest tree (in mass) in the world